Cable-coupling



HERMAN A. JENSEN, OF CASTLE ROCK, WASHINGTON.

CABLE-COUPLING.

Specification. of Letters Patent.

Patented Oct. 18, 1921.

Application filed November 12, 1920. Serial No. 423,719.

To all whom it may concern Be it known that I, HERMAN citizen of theUnited States of resident of Castle Rock, in the county of Cowlitz, inthe State of Washington, have invented certain new and usefulImprovements in Cable-Couplings, of which the following is aspecification, reference being had to the accompanying drawing.

My invention relates to couplings for cables in which provision is madefor attaching one part of a cable to another, or for attaching the cableto some other mechanical element, by aid of a socket swiveled thereto.

The object of my invention is to provide means for permitting freedom ofmovement in service of a cable under torsional strain, without eitherimpairing the strength of the cable under tension, or interfering withits freedom of manipulation when tension is relieved.

IVhat constitutes my invention will be hereinafter specified in detailand succinctly set forth in the appended claims.

In the accompanying drawing,

Figure I is a longitudinal vertical sec tion, partially in elevation, ofmy invention in present preferred form of embodiment.

Fig. II is a side elevation of the subject matter of Fig. I, taken atright angles to the section shown in Fig. I.

Fig. III is a section on the line IIIIII as indicated by the arrows inFig. I.

eferring to the numerals on the drawing, 1 indicates a socket-piece, and2 a rotative head fitting with operative snugness within the same. Thesocket-piece l is provided with a preferably integral bail or link loop3 by which it may be coupled to another cable or mechanical elementafter the manner of a chain link.

The head 2 is carried within the socket piece 1 by an annular flange iwhich fits rotatively within an annular recess 5 provided for itsreception in the interior wall of the socket-piece, the latter beingprovided with a tapered bore. The head 2 is correspondingly tapered, andthe function of the flange 4 is to support those two parts in closejuxtaposition, but without danger of their freezing or becoming jammedinto close A. JENSEN, 2. America, and

contact by a pull upon the head in the direction opposite to the bail 3.

The head 2 is preferably provided with an axially elongated aperture 6flared at its upper end as indicated at 7, for the accommodation in theusual manner of a cable 8 whose expanded head is babbitted or otherwisesecured into the flared aperture 7. In effect, the cable end and thehead 2 are thus made one, so that when the head 2 is inserted into thesocket-piece 1, the union of those elements affords, through mediationof the bail 3, secure means of uniting the cable to another member.

am aware that it is old in the art to provide a cable with a head fixedthereto in a socket-piece. My invention consists in improving, and infacilitating the operation of, such a connection whereby the torsionalstrain upon the parts of the coupling occasioned by twist in the cablemay find relief without impairment of the efficiency of the cable forservice. To that end provide, in connection with the socketpiece 1, head2, and flange 4, as described, an annular groove 10 in the head 2 and atransverse retaining member, for example a pin or bolt 11, looselypassing through the same and extending, as through an aperture in ahousing 12 provided for it, across the socket-piece l, as shown, forexample, in Fig. III. The member 11 is carried so as to hold the head 2rotatively within the socket 1 but not so as to receive any of thestrain that may be exerted through the cable 8 upon the head 2, thatstrain being carried wholly by engagement between the flange 4 and thewalls of its recess 5. The member 11 is preferably a bolt provided atone end with a head 14, and at the other threaded to a nut 15.

The operation of my invention will be apparent to one skilled in the artfrom the foregoing specification, and appears to require no furtherdescription.

IVhat I claim is: v

l. A cable coupling consisting of the combination with a socket-piece,and a head adapted to be secured to the end of a cable, of an annulargroove in the head, and a transverse retaining member in the socketpiecetraversing the groove in the head and rotatively securing the head andsocketpiece together.

2. A cable coupling consisting of the combination with a socket-piece,and a head rev? ,olubly united by an annular flange promy hand in thepresence of two subscribing vided on the head and a corresponding re-Witnesses. v

cess rovided in the socket-piece, of an annu- 1 w lar g d'oove in thehead, and a transverse re- HERMAN JENSEN 5 taining member in thesocket-piece travers- Witnesses:

in% the groove in the head. R. M. GOQDFELLOW, n testimony whereof, Ihave hereunto set RUDOLPH FINKAS.

